Dionex ICS-5000
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Installation Instructions
120
Doc. 065447-02 12/14
Because capillary IC systems use low flow rates and consume very little
eluent, you can leave a capillary IC system on at all times, allowing it to
remain equilibrated and always ready to run the next sample.
4.4.1
Installing a Backpressure Coil
In an analytical IC system, if the system pressure is below 14 MPa (2000 psi)
during system equilibration (see
), install a backpressure coil
between the injection valve and the
ELUENT OUT
port on the Dionex EGC.
Connect one end of the backpressure coil to port
P
(2) on the injection valve;
connect the other end to the
TO INJ VALVE IN - P
line.
The EG Ship Kit (P/N 072047) includes four backpressure coils (see
Capillary
IC
Part
Number
Backpressure Coil
Description
Flow Rate
Approximate Back-
pressure Added
AAA-053762
4 mm (0.005 in) ID,
red
1.0 mL/min
1.75 MPa (250 psi)
2.0 mL/min
3.5 MPa (500 psi)
AAA-053763
4 mm (0.005 in) ID,
red
1.0 mL/min
3.5 MPa (500 psi)
2.0 mL/min
7 MPa (1000 psi)
053764
2 mm (0.003 in) ID,
yellow
0.25 mL/min
1.75 MPa (250 psi)
0.50 mL/min
3.5 MPa (500 psi)
053765
2 mm (0.003 in) ID,
yellow
0.25 mL/min
3.5 MPa (500 psi)
0.50 mL/min
7 MPa (1000 psi)
Table 4-2. Backpressure Coils
The recommended maximum operating pressure for the EG in a
standard-pressure analytical system is 21 MPa (3000 psi). The
recommended maximum operating pressure for the EG in a high-
pressure analytical system is 34 MPa (5000 psi). Excessive
backpressure may rupture the tubing inside the Dionex RFIC
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Eluent
Degasser.